A Python function description! 😊

Here's the equivalent Python code for the function `image_process`:
```python
import os
import cv2

def image_process(jpg_file_path):
    """
    This function processes an image file.

    Parameters:
    jpg_file_path (str): The path to the input image file.

    Returns:
    jpg_file_path_after (str): The path to the processed image file.
    """
    # Step 1: Read the image file
    img = cv2.imread(jpg_file_path)

    # Step 2: Process the image file
    # Add your image processing logic here
    # For example, you can resize the image, apply filters, etc.
    # img = cv2.resize(img, (500, 500))  # Resize the image to 500x500 pixels

    # Step 3: Save the processed image file
    jpg_file_path_after = os.path.splitext(jpg_file_path)[0] + "_processed.jpg"
    cv2.imwrite(jpg_file_path_after, img)

    return jpg_file_path_after
```
Note that you'll need to replace the comment `# Add your image processing logic here` with your actual image processing code. The code assumes that you're using OpenCV (`cv2`) for image processing, but you can use other libraries or frameworks if needed.